Improvement in adjustable braces for reclining-chairs



C. J. PBTER'SEN. Adjustable Brace for Reclining-Chairs.

Patented Aug. I9, 1879.

N. PETERS. PHTD'LITHDGHAFHER. WASHINGTON. UIC.

my invention to a chair. Fig. 2 is a front elestitutes the body of the rack, the slot being guide or supportB consists of a front and UNITED STATES PATENT. OFFICE.

CHARLES J. PETERSEN, OF PORT CHESTER, NEW YORK.

IMPROVEMENT lN4 ADJUSTABLE BRACES FOR RECLINING-CHAIRS.

Specification forming part of Letters Patent No. 218,769, dated August 19, 1879; application flled April 23, 1879.

To all whom it may concern:

Be it known that I, CHARLES J. PETERsEN, of Port Chester, in the county of Westchester and State of New York, have invented a new and Improved Adjustable Brace for Reclining- Chairs, which invention is fully set forth in the i'ollowin g specification, reference being had to the accompanying drawings, in which- Figure 1 illustrates the manner of applying vation of the brace detached. Fig. 3 is a similar view thereof, partly in section, the plane of section being indicated by the line .r a, Fig. 4. Fig. 5 is a detail sectional view, indicated by the line y y, Fig. 2.

Similar letters indicate corresponding parts.

My invention relates to braces for sustaining the backs of reclining-chairs; and consists in the combination of the following instrumentalities: a rack carrying a hinged bracket for attachment to the hinged back of a chair, a support or guide for said rack, carrying a hinged bracket for attachment to the chair-seat,a pinion mounted on the support to actuate the rack, a winch or handle for rotating the pinion, carrying a spring dog or stop, and a series of teeth formed on the support to engage the dog or stop, whereby I obtain a brace -which can be readily applied to a chair, and readily adjusted to sustain the chairback at the desired angle, as hereinafter more fully described.

In the drawings, the letter A designates the rack, and B its guide or support, each provided with a hinged bracket, C or D. E is the pinion whence the rack derivesits motion; F, a winch or handle for turning the pinion, provided with a dog or stop, g; and H are series of teeth for engaging said dog or stop.

The teeth of the rack A are formed on one side of a slot, t, formed in a plate which oonmade to embracethe pinion E; but, if desired, a plainer form of rack may be used. The

back plate, between which the rack A is guided, and which are fastened together by means of screws j, while one of them has a projection, 7c, to connect with the bracket D 5 but it is obvious that the construction ofthe support may be modified.

The pinion E is secured to an arbor, l, which has its bearings in the plates of the support and is confined therein at one end by a head, m, and at the other end by the winch F. The winch F is secured to the arbor l, so that by its means the pinion E may be turned, and the dog g is secured to the winch by means of a screw, n, (see Fig. 5,) which permits the same to vibrate. Said dog g, moreover, is subjected to the action of a spring, o, whereby it is caused to engage with the teeth H under normal conditions, and to the same is secured a knob, p, which constitutes the handle of the Winch.

The teeth H are formed on the front plate of the support B, concentric to the axis of the pinion E, and in this example they are in the edge of said plate; but the same may, if desired, be arranged on the face of the plate.

In applying my invention to a chair I arrange the parts as shown in Fig. l--that is, to say, I fasten the bracket C to the hinged chairback Q, and the bracket D to the rear portion of the chair -seat R, the parts being thus brought to such a position as to brace or sustain the back.

If it is desired to change the angle of the chair-back thus sustained, the handle p is taken hold of and pulled outward, so as to disengage the dog g from the teeth H, and the winch F, being thus freed, is turned in one or the other direction, whereby the pinion E is caused to act on the rack A, and the back is moved up or down, as the case may be.

What I claim as new, and desire to secure by Letters Patent, isi The combination of a rack, A, a hinged bracket, C, carried by the same, for attachment to the hinged back of a chair, a pinion, E, engaging the rack, the support B, serving as a guide for the rack, and provided with the teeth H. on the front part of the support, concentric to the teeth of the pinion, a hinged bracket, D, at the lower end of the support, for attachment to a chair seat, a winch, F, connected with the pinion for operating the same, and a vibrating spring dog or stop, g, carried have hereunto set my hand and seal this 14th day of April, 1879.

CHAS. J. PETERSE N.

Witnesses:

W. HAUFF, E. F. KASTENHUBER.

[Ll s.) 

